html {
  background-color: black;
  color: lightgray;
  font-family: "Courier New", Courier, monospace;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: calc(100vh - 8rem);
  margin: 0;
  padding: 4rem 2rem 4rem 2rem;
}